Abstract
The correct use of electromagnetic band structures (EBG) becomes very interesting in the field of electromagnetic theory and antenna design. The use of electromagnetic band- gap (EBG) structures constructed with microstrip technology is one of the efficient techniques to reduce interconnection problems. This article proposes a three-layer dielectric substrate with four holes or air cylinders forming an EBG structure with an insert feed technique. Here the idea is to use the specified structure in the mid layer of dielectrics. In order to improve over surface wave losses, the necessity of introducing EBG structures is appeared. The achievement of higher efficiency and enhanced bandwidth is feasible by proper impedance matching during the feeding mechanism. The structure is designed for the resonant frequency of 2.4 GHz and the entire simulation is performed with Ansoft High Frequency Structure Simulator (HFSS) version 11.
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